A double nested set of NOT EXISTS SELECT statements can be used to find rows that meet some specified condition for every row in a table.

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A double nested set of NOT EXISTS SELECT statements can be used to compare rows of two tables and return only those rows from the first table that have no matching rows in the second table for every row in the first table. It does not apply to finding rows that meet a specified condition for every row in a table.

A Double Nested Set of NOT EXISTS SELECT Statements Can